There are hardware problems, especially memory, that will cause EUEs. Heat will do it also, and blowing out a system has cured some really hard-to-find problems.
Software issues start with spyware and virus problems and progress to Windows becoming unstable. Video drivers can also cause problems. Was your system updated by M$ last Tuesday? Ruh Roh.
Now, if you are running new work units the natural regression patterns will find that half of work units will fail. Its natural and will get better as out-of-bounds solvations are excluded.
When in doubt, go ahead and erase the existing work files and reload F@H. Better to lose one WU than a dozen.
There were 6 in a row. They included projects 2425,2426, & 2427 which are new. They all ended in the Quit 101-Fatal error: NaN detected: (ener[13]). After the first couple I blew out the dust but that didn’t help. I have run all the cpu and memory stress test with no problems. It must the new work units, like you said. I will delete the existing work file and see what happens.
Now if I could just use my Nvidia 8800 to fold on my other pc. I am starting to doubt that it will ever be supported.