I just bought an external 40x USB 2.0 CD burner, only to find out that it will only burn up to 4x if my USB ports are version 1.1. I’m pretty sure they are, but would like to know for sure. My manual doesn’t state the version, and I couldn’t find it on the Compaq specs for my specific computer. Any ideas how to find out? This PC was purchased new a year ago (Sept. 2001). Thanks