DW CS5.5 in OSX Lion - anyone seeing problems with Spaces?

Question

DW seems to have problems with Spaces in OSX Lion.Switching into DW from other spaces is not 'clean'. When DW comes up, sometimes the Code/Design is blank white, and windows within the workspace don't show their headers. Clicking on Code/Design redraws that window, but the only thing that seems to recover the window headings is switching to and then back from another app in the same Space.
Seems like screen redrawing triggered by switching apps within the same Space is a little different than that triggered by switching apps across Spaces.
Anyone else seeing this?

Answer 1

I did report it as a bug, using the link kindly provided by you and Shocker.
The two Macs I've tried this on now are a Mac Pro and an iMac, so there's no Automatic Graphics Switching option to enable/disable.
I was only able to check this out on the iMac late last night.
Hardware synopsis:
Mac Pro Early 2009
Processor  2 x 2.93 GHz Quad-Core Intel Xeon
Memory  16 GB 1066 MHz DDR3 ECC
Graphics  NVIDIA GeForce GT 120 512 MB
Software  Mac OS X Lion 10.7 (11A511)
The iMac isn't available to me at the moment, I'll have to fill in missing details later (can't remember the exact graphics card info):
DW is CS5, not CS5.5, was also installed well ahead of the Lion upgrade
Computer is iMac instead of Mac Pro, about 1.5 years old
Quad-Core i7
4GB memory
Mac OS X Lion 10.7
I used the same procedure upgrading to Lion on the iMac...
Ran Cocktail 'Pilot' to clean up the system prior to install (runs Daily, Weekly, Monthly maintenance scripts, clears System, User, and Internet caches, repairs disk permissions on "Macintosh HD", clears log files)
OS10.7 was purchased through the Mac App Store and installed.
JRE installed.
DW on the iMac exhibited the same problem as on the Mac Pro.
To reproduce:
Start DW, open a file for editing
Start any other app in the same Space
Open a new Space, open any other app there.
Test switching between DW and other apps in the same Space compared with switching between DW and other apps in different Spaces.
Consistently, when I switch between DW and other apps in the same Space, DW's windows/panels redraw properly,
and when I switch between DW and other apps in different Spaces, DW's windows/panels don't redraw properly.