Disk I/O error

Hi, all
can anyone tell why the following error occure in the form6i
and how to solve it?

"Disk I/O error on temporary record buffer file C:\tmp\3vxxx"

thanx.

There could be several reasons, starting with corrupted data, overloaded io system so the read/write timed out, etc.

I favor a timeout, depending on number of users, number of dbwr's, whether async i/o is allowed, and some other factors.
Basically, due to stress.

But this is guessed in ignorance of your platform, system and database configuration.

More information is needed. Sometimes this error is an annoyance (if a read only cd based tablespace is not in the drive), sometimes a symptom of a system problem (drive going bad). Were there any other messages association with the one you cited.

check the alertlog file for exact reason and associated trace files if any

What is the platform U R working on?