I suspect you may have done something else that caused this problem. If what gbhall said doesn't work, then post back with whatever else you can think of that you may have done.
The reason I think its not simply a pagefile issue is because I run several hard drives in my desktop PCs and always prevent pagefile creation on the partitions on the OS drive. Sometimes I'll have a hard drive die or I'll for whatever reason not have the drive connected that contains the pagefile. When that happens, Windows boots up slowly and then bitches that no pagefile was found and that they've created a temporary one for me.