i had same problem.(768mbr). this worked for me. click start|run and type notepad c:\windows\system.ini look for a line that says [vcache] .if you do not see one,add it to the bottom of the SYSTEM.INI file._UNDER THAT ,put the entry for MaxFileCache. [vcache] MaxFileCache=262144 then click file|save . reboot,works for me .
