Sounds like a computer issue more than a base issue -- my first guess would be something memory related. She might want to first try turning some of her graphics settings down a few notches.
If that doesn't work, from the Technical Issues and Bugs forum, here's how to post the system specs from your wife's computer that will help help out the tech types around here: http://boards.cityofheroes.com/showthread.php?t=231628
A COH Helper file and a Hijack This log [from that above link] will go a long way to give people the answers they need to come up with your answer -- good luck!
"But it wasn't anything some purples and oranges and lots of screaming in fear couldn't handle." -- Werner
30 level 50's: 12 scrappers, 7 other random melee types, 11 blaster/blapper/support squishies, two accounts, and a TON of altitis since 4/28/04
Ok hope someone can help here,my wife freeze's up every time she goes to edit the base.This has only started to happen since she got windows 7 64 bit.I have windows7 32 bit and have no problems,she has the permissions to edit the base hope you can help.
Prof Radburn controller,Celtic Ice Maiden,blaster,Miss Knockout scrapper,Mistress Davina controller,Stone Hart,tank Split Personality PB.Queen Lostris controller,Fridgid Mary blaster,Shocking Fire blaster Future Elfling defender, Little Weed controller,Capo Angelo MM, Commander Buzzsaw MM, Justice Tank tank all 50,s