Chris Martin’s blog

This is really a post about two bugs in vista the suggested cure for one causes the other (for me any way). The first error is the very slow large file operations like moving copying and deleting of large files you can read more about this here. One of the suggested cures for this is to turn off “Remote Differential Compression” I did this in an effort to fix the problem I never really found out if that cured the issue as I don’t move large files around that often (and I’m unlikely to find out now as I will most likely leave “Remote Differential Compression” on now).  Disabling this caused all streaming video to be choppy unless it had buffered a lot of the video in advance. The bug seemed worse when in full-screen mode. I’m not sure if this is hardware specific or not but my video card is ATI Radeon HD 4870 X2 I’m almost 100% sure that its not to do with slow Internet connection which is what it might be confused with at first glance. As you might have already guessed this choppy video problem can be fixed by re/enabling “Remote Differential Compression” but if that was the fix for your slow file operations bug then I guess guess you will just have to choose slow file operations or choppy streaming video.