Thanks. Using your recommendation here made everything look much better. I didn't know what was causing the problem.
And, since you've got the motherboard for it and if you have an adequate CPU heatsink, you should try your hand at overclocking that i7 930. I have mine at 4114MHz (4 cores turbo)/4301MHz (single core turbo) with my uncore at 3740MHz and I've had it at these settings for years, now. The difference is very noticeable, especially if you have an SSD.