There has been a problem with certain RAM chips used in the Apple IIGS
RAM expansion card. It is a refresh problem, not a loading problem.
One symptom: AppleWorks crashes after being in use for a while.
Service stock has been purged of RAM upgrade kits with suspected bad RAM
chips, so any new upgrades should have no problem.
If you suspect bad RAM, check the date codes on the chip. The suspected
bad numbers are 8752 and 8801.