Lightroom 3.3 Performance/Crash Issues

Question

During the process of tweaking approximately 200 images in Lightroom’s develop module (primarily the Crop, Spot Removal, Camera Calibration and Lens Correction tools) several issues were encountered:
-         Sluggish cursor response after adjusting ~30 photos
-         Intermittently having the application enter a ‘No Responding’ state
-         One occurrence of the ‘An unknown error occurred’ being displayed
-         One instant of the application crashing
Several hours were spent attempting to define a recipe for the problem resulting in nothing definitive. Issues always appeared when application consumes more than 1.3G of RAM. Detail captured from the system included below:
Platform details (this snapshot was taken when the application had entered a sluggish state):
Lightroom version: 3.3 [711369]
Operating system: Microsoft Windows XP Professional Service Pack 3 (Build 2600)
Version: 5.1 [2600]
Application architecture: x86
System architecture: x86
Physical processor count: 4
Processor speed: 2.4 GHz
Built-in memory: 3327.0 MB
Real memory available to Lightroom: 716.8 MB
Real memory used by Lightroom: 1416.1 MB (197.5%)
Virtual memory used by Lightroom: 1419.1 MB
Memory cache size: 0.0 MB
System DPI setting: 96 DPI
Displays: 1) 1920x1200
Catalogue Size: 116,000
Crash report:
Faulting application lightroom.exe, version 3.3.0.10, faulting module ui.dll, version 3.3.0.10, fault address 0x000d5ba9.

Answer 1

Tom,
It may be necessary (reading the trail below) to start another thread entitled - "Definition of a release candidate - discuss..."
I for one had terrible trouble running LR3.0 (the LR3.0RC was fine), so whatever changed between the LR3.0 and the LR3.0 final caused all measure of upset with my image processing on my machine.
I had -
     Video flickering - particularly when moving from library to develop with large tiff's (80MB) selected
     Very slow rendering
     Adjustment brush very slow to update, causing over runs while using it
     Random lock-ups and reboots
Since the upgrade to LR3.2 things are better, I get the occassional flicker, rendering is still slow, as is the adjustment brush but the occasional lock up's seem to have disappeared.
I'm running Windows 7 ultimate, 4GB Ram, AMD Athlon dual core and have lightroom loaded in 64 bit mode.
If you want to know anything about my hardware, drivers, set up or otherwise, just e-mail me. I have not updated to LR3.3RC yet as I believe it cannot run alongside LR3.2 on a windows machine.
Best Regards
Phil