I am currently having Lightroom 4.1 RC hang fairly consistently once I have applied noise reduction and then zoom to 100% to check for artefacts, or at 100% view scroll the image, at this point the image remains blurred and doesn't seem to refresh or re-render.
I have found by reducing the noise reduction back to zero or some times by simply clicking on or moving the slider a little either way the image refreshes/responds again. If you wait long enough without altering the noise reduction slider Lightroom indicates off and on that it is not responding.
The files which I'm post processing are Canon 7D Raw Files. I find the product offers so much promise until it hangs, so I'm hoping someone may have an answer to this issue.
The following is my PC configuration:
OS Name Microsoft® Windows Vista™ Ultimate
Version 6.0.6002 Service Pack 2 Build 6002
Other OS Description Not Available
OS Manufacturer Microsoft Corporation
System Manufacturer Dell Inc.
System Model Dell XPS720
System Type X86-based PC
Processor Intel(R) Core(TM)2 Quad CPU Q6600 @ 2.40GHz, 2400 Mhz, 4 Core(s), 4 Logical Processor(s)
BIOS Version/Date Dell Inc. A06, 1/04/2008
SMBIOS Version 2.3
Windows Directory C:\Windows
System Directory C:\Windows\system32
Boot Device \Device\HarddiskVolume3
Hardware Abstraction Layer Version = "6.0.6002.18005"
Installed Physical Memory (RAM) 4.00 GB
Total Physical Memory 2.75 GB
Available Physical Memory 945 MB
Total Virtual Memory 8.74 GB
Available Virtual Memory 6.47 GB
Page File Space 6.08 GB
Page File C:\pagefile.sys