Project 2000 problem

I recently installed Project 2000 on a laptop running Win98 2nd ed. The rest of the MS Office suite is also installed on this machine. When Project is run the user is able to open and work on projects and save them but when shutting the program down he gets an error message that WINPROJ has performed an illegal operation...specifically an "invalid page fault in module MSVBM60.DLL"

I'd appreciate any input on how to resolve this issue. I tried uninstalling and reinstalling the program to no avail. Thanks in advance.