We’ve received several reports of an occasional issue occurring with VS 2010 when developers try and do “Cut” or “Copy” text operations of text. In some cases VS incorrectly calculates that not enough memory is available (even though there is memory available) and displays the following error message:
"Insufficient available memory to meet the expected demands of an operation at this time, possibly due to virtual address space fragmentation. Please try again later."
There is now a public patch available for this issue which you can download and apply here if you are running into it. More details on the issue can be found on the Visual Studio team blog here.
Hope this helps,
Scott
P.S. In addition to blogging, I am also now using Twitter for quick updates and to share links. You can follow me at: twitter.com/scottgu