XAL Windows environment - new reports hanging system

Hi, A new report was created which runs ok in the test system. Installed it into the Live system and it runs ok in the console environment but when run in windows the application hangs. No error message. I tried to create a new report through report generator but when you go to save it the application hangs. Same issue as above. Only seems to be a problem with adding or creating new files. And it only happens in the Windows environment. The console environment is running ok. Anybody have any ideas to what could be the problem? And how it can be fixed? Thanks Ellen