Weird... mini preview image

This is weird... suddenly in my iChat video preview, I can only get a postage stamp sized image. It's active, but small. With black borders filling the rest of the frame.
Anybody know what this could be?
I searched it and nothing came up. I've tried zapping the PRAM and a PMU reset.
I do have Chax and ChatFX installed. But this worked before and suddenly has stopped, even though I'm not aware of any changes. All software updates are current too.
The timing is terrible... we just had a baby and the grandparents are overseas and desperate for a live introduction!

It gets weirder yet...
This is a separate iSight, used with an Alubook.
Yet, on this same machine, I've tested it with Photobooth and other video programs on my computer. It's situation normal. Works fine. The green light on the camera goes on, the image is full sized, and it takes a decent picture.
But with iChatAV, either in the video preview window from the menu or from just clicking on the video icon, no go.
What's more, when I open iChat with the camera attached, I get no green light... even though my chat icon switches to video... and still, even after deleting plist files, the video image I see remains small.
One thing I did remember... between now and the last time I used the iSight (more than a week ago) I had installed Skype for video. Maybe I should delete that? I'll give it a try.

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Change Flashdrive Preview Image

There a way to change the con of the flashdrive as it appears on the desktop? The icon is a little boring and i want to change it to a custom image of mine. Help?

Figured it out for anyone who wants to know. Open the image you want in Preview and use the select to tool to select the WHOLE image. Hit Apple+C to copy and switch over to your folder, or whatever else. Hit Apple+I to "Get Info." In the top left corner there should be a small image. The same image as the big "Preview Image" below it. Select the small picture in the top-left corner. It should have a blue outline. Hit Apple+V to paste. Your preview image should have changed. If not reply to this and I'll try to let you know why it is not working.

Here is a function to read preview images from active catalog

--- Get a preview image corresponding to specified photo, at the specified level, if possible.
-- @param photo (LrPhoto or table of param, required) specified photo or table of named parameters same as below including photo=lr-photo:
-- @param photoPath (string, optional) photo-path if available, otherwise will be pulled from raw-metadata.
-- @param previewFile (string, default=unique-temp-path) target path to store jpeg - if non-vil value passed and file is pre-existing, it will be overwritten.
-- @param level (number, required) appx sizes + intended use:
-- 1 - 80x60 small thumb
-- 2 - 160x120 medium thumb
-- 3 - 320x240 large thumb
-- 4 - 640x480 small image
-- 5 - 1280x960 medium image
-- 6 - 2560x1920 large image
-- 7 - 1:1 full-res
-- @param minLevel (number, default=1) minimum acceptable level.
-- @usage file, errm, level = cat:getPreview{ photo=catalog:getTargetPhoto(), level=5 }
-- @usage file, errm, level = cat:getPreview( catalog:getTargetPhoto(), nil, nil, 5 )
-- @return file (string, or nil) path to file containing requested preview (may be the same as preview-file passed in).
-- @return errm (string, or nil) error message if unable to obtain requested preview (includes path(s)).
-- @return level (number, or nil) actual level read, which may be different than requested level if min-level passed in.
function Catalog:getPreview( photo, photoPath, previewFile, level, minLevel )
 if photo == nil then
 app:callingError( "no photo" )
 end
 if not photo.catalog then -- not lr-photo
 photoPath = photo.photoPath
 previewFile = photo.previewFile
 -- assert( photo.level, "no level in param table" )
 level = photo.level
 minLevel = photo.minLevel
 photo = photo.photo
 -- assert( photo and photo.catalog, "no lr-photo in param table" )
 end
 if level == nil then
 app:callingError( "no level" )
 end
 if level > 7 then
 app:logWarning( "Max level is 7" )
 level = 7
 end
 if photoPath == nil then
 photoPath = photo:getRawMetadata( 'path' )
 end
 local photoFilename = LrPathUtils.leafName( photoPath )
 local _previewFile
 if previewFile == nil then
 _previewFile = LrPathUtils.child( LrPathUtils.getStandardFilePath( 'temp' ), str:fmt( "^1.lrPreview.jpg", photoFilename ) ) -- include extension, since there are separate previews for each file-type.
 else
 if fso:existsAsFile( previewFile ) then
 app:logVerbose( "preview path passed is to existing file to be overwritten" )
 end
 _previewFile = previewFile
 end
 local imageId
 local s = tostring( photo ) -- THIS IS WHAT ALLOWS IT TO WORK DESPITE LOCKED DATABASE (id is output by to-string method).
 local p1, p2 = s:find( 'id "' )
 if p1 then
 s = s:sub( p2 + 1 )
 p1, p2 = s:find( '" )' )
 if p1 then
 imageId = s:sub( 1, p1-1 )
 end
 end
 if imageId == nil then
 return nil, "bad id"
 end
 local cp = catalog:getPath()
 local fn = LrPathUtils.leafName( cp )
 local n = LrPathUtils.removeExtension( fn )
 local cd = LrPathUtils.parent( cp )
 local pn = n .. " Previews.lrdata"
 local d = LrPathUtils.child( cd, pn )
 local pdb = LrPathUtils.child( d, 'previews.db' )
 assert( fso:existsAsFile( pdb ), "nope" )
 --Debug.pause( pdb )
 local exe = app:getPref( 'sqlite3' )
 if not str:is( exe ) then
 if WIN_ENV then
 exe = LrPathUtils.child( _PLUGIN.path, "sqlite3.exe" )
 else
 exe = LrPathUtils.child( _PLUGIN.path, "sqlite3" )
 end
 app:logVerbose( "Using sqlite executable included with plugin: ^1", exe )
 else
 app:logVerbose( "Using custom sqlite executable: ^1", exe )
 end
 local param = '"' .. pdb .. '"'
 local targ = str:fmt( "select uuid, digest from ImageCacheEntry where imageId=^1", imageId )
 local r1, r2, r3 = app:executeCommand( exe, param, { targ }, nil, 'del' )
 local uuid -- of preview
 local digest -- of preview
 if r1 then
 if r3 then
 local c = str:split( r3, '|' )
 if #c >= 2 then
 -- good
 uuid = c[1]
 digest = c[2]
 else
 return nil, "bad split"
 end
 else
 return nil, "no content"
 end
 else
 return nil, r2
 end
 local previewSubdir = str:getFirstChar( uuid )
 local pDir = LrPathUtils.child( d, previewSubdir )
 if fso:existsAsDir( pDir ) then
 -- good
 else
 return nil, "preview letter dir does not exist: " .. pDir
 end
 previewSubdir = uuid:sub( 1, 4 )
 pDir = LrPathUtils.child( pDir, previewSubdir )
 if fso:existsAsDir( pDir ) then
 -- good
 else
 return nil, "preview 4-some dir does not exist: " .. pDir
 end
 local previewFilename = uuid .. '-' .. digest .. ".lrprev"
 local previewPath = LrPathUtils.child( pDir, previewFilename )
 if fso:existsAsFile( previewPath ) then
 app:logVerbose( "Found preview file at ^1", previewPath )
 else
 return nil, str:fmt( "No preview file corresponding to ^1 at ^2", photo:getRawMetadata( 'photoPath' ), previewPath )
 end
 -- this could be modified to return image data instead of file if need be.
 local content
 local function getImageFile()
 local p1, p2 = content:find( "level_" .. str:to( level ) )
 if p1 then
 local start = p2 + 2 -- jump over level_n\0
 local p3 = content:find( "AgHg", start )
 local stop
 if p3 then
 stop = start + p3 - 1
 else
 stop = content:len() - 1
 end
 local data = content:sub( start, stop )
 if previewFile ~= nil then -- user passed file
 app:logVerbose( "Writing preview into user file: ^1", _previewFile )
 else
 -- rename file to include level.
 local base = LrPathUtils.removeExtension( _previewFile ) .. '_' .. level
 _previewFile = base .. ".jpg"
 app:logVerbose( "Writing preview into default-named file: ^1", _previewFile )
 end
 local s, m = fso:writeFile( _previewFile, data )
 if s then
 app:logVerbose( "Wrote preview file: ^1", _previewFile )
 return _previewFile
 else
 return nil, m
 end
 else
 return nil -- no real error, just no preview at that level.
 end
 end
 minLevel = minLevel or 1
 local status
 status, content = LrTasks.pcall( LrFileUtils.readFile, previewPath )
 if status and content then
 repeat
 local file, errm = getImageFile() -- at level
 if file then
 return file, nil, level
 elseif errm then
 return nil, errm
 elseif level > minLevel then
 level = level - 1
 else
 return nil, str:fmt( "No preview for ^1 at any acceptable level", photoPath )
 end
 until level <= 0
 return nil, str:fmt( "Unable to obtain preview for ^1", photoPath )
 else
 return nil, str:fmt( "Unable to read preview source file at ^1, error message: ^2", previewPath, content )
 end
end
This function is working great so far, but as of 2011-09-29 it has not been rigorously tested, so it may have a bug or two...
It is based on the elare plugin framework available here (including source code): https://www.assembla.com/spaces/lrdevplugin/
You will need sqlite3 executable from here: http://www.sqlite.org/sqlite.html
- put it in lr(dev)plugin dir
Note: view-factory's picture component will accept a path as resource id, so to use:
local pictureFile, errm = cat:getPreview( photo, nil, nil, 4 )
if pictureFile then
 items[#items + 1] = vf:picture {
 value = pictureFile,
end
Note: the above code is intended for "sample/example" only -
MUST DO:
- Handle portrait orientation properly...
MAYBE DO:
- Handle AdobeRGB profile assignment - not needed for thumbs, but maybe for the biggies...
- Optimize for multi-photo use.
- Change detection for sake of caching for repeated access (like scrolling thumbnails).
@2011-10-04, the code at Assembla.com (see link above) takes care of all these things, and then some...;-)
Rob

Thank for so interesting and undocumented feature. Where you get it?
[quote]In Mac version there's a file called Contents/PlugIns/MultipleMonitor.lrmodule/Contents/Resources/LrPhotoPictureView.lua[/quot e]
On my version of Lr3 this lua script is compiled. Did you puzzle out decompiled code?
Unfortunatelly, there are some issues with this way of getting preview:
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C:\Users\836D~1\...
 instead of
C:\Users\РђРґРјРёРЅРёСЃС‚СЂР°С‚РѕСЂ\
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Maybe somebody know a way how to push Lightroom to refresh previews db into "Develop" mode?
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Hi All,
i need your help in this issue please
i've just migrated my application from forms 6i to forms 11g
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Hello Nivin
If you want to read an file from local drive or from netwrok drive then before reading images please make sure that do you have full rights and have you mapped that network drive .
after that you use read_image_file built in(). secondly you configure WEBUTIL package.
please visit the following link for configuring webutil.
I configured my webutil package from this link and its worked fine.
http://www.baigzeeshan.com/2010/01/open-file-dailog-box-example-using.html
thanks
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I contacted Adobe support and followed all instructions to try to fix but the problem remains. This comment was made after several solutions were tried, including updating Lightroom. :
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Me: Nothing changes in the develop mode. The image looks the same as in the preview/Library mode.
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I have been using Bridge CS3 on MAC OS X 10.4 for about 2 years and have happily used it as part of my image processing work flow for thousands of images. A Canon 1DS is my main camera. Some time ago I have started using a Canon G9 in addition to the 1DS. So far so good.
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Many thanks, Tom

I had this with my Canon30D files as well. Spurious previews. I met with Adobe in person and went over this. I then moved to Bridge 3.x and went over why I needed high quality images and the person I was working with took many copies of my images to work on the high quality previews.
I found when I went to one of the 3.x versions of Bridge, this was corrected and I got to use High Quality without the spurious previews.
I did not have to give up my High Quality. At least not in my case.
I will note that I was on the prerelease member site and so did get Bridge 3.x versions that may not have made it to the public, hard to know as I have since moved on to CS4.
I remember a time when I could not use the global purge command and had to throw away all cache folders but this is no longer the case.
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So I, for one, cannot say there will remain a black eye. Adobe was very supportive with me.
b One thing though, I could not use "software render" ever with any success.

Bridge CC / How to use all cores to generate preview images?

Hi!
Is there anyway to tell Brdige, that it should use all my cores to generate the preview images?
Actually it uses only 25% of my CPU performance. I've a Intel Core i7-2600 CPU @ 3,4 GHZ, with four cores and enabled hyperthreading, also eight virtual CPUs.
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If there is any chance, I would be very pleased.
Thanks

It's really frustrating:
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Other teams of Adobe are still telling me, that it's impossible to process several images in parallel and speeding up the Bridge thumbnail and preview generating process:
http://feedback.photoshop.com/photoshop_family/topics/bridge_cc_how_to_use_all_cores_to_ge nerate_preview_images?rfm=1
I do not get it. :-(

Weird... mini preview image

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