nusihb, Pyr0, SetteUltras, burningrave101,
seems like it is only a 64-bit Linpack issue, when forced to run in 8 threads. I heard of that problem before but I don't think I can do anything about it. Reverting back to 2 Linpack processes doesn't seem a good idea to me. For now I can only suggest you to disable the Stop on error option and see whether all other results (starting from the 2nd one) are the same. If they are - it is definitely that Linpack glitch I heard about (the 1st result differing from the rest). I don't think I can do anything about it till the newer version of Linpack will possibly fix this issue. But if all the forthcoming results are same, I can just add a feature to skip the very 1st test.

tomb18, there are no viruses in LinX, must be a false positive. The exe is packed though - this is the only explanation I have that might have caused the detection of a virus.