I have a new HP Pavillion Slimline Model s5-1224 running Windows 7 Home Premium 64-bit on SP1 with Intel Pentium 2.8 Ghz processor, 6 GB Ram and and a 900 GB (800 GB free) HD. I have an external graphics card (Triton TRI-UV150) connected via USB to accomodate Dual HP 2010 Wide LCD monitors.
When the graphics card is connected to the CPU, it takes upwards of 1-2 minutes to load the homepage (Google). Without the graphics card connection, home page load is almost instantaneous.
I have uninstalled/re-installed the graphics card driver
with the help of the manufacturers' tech support and the issue is still not resolved. Manufacturer states that "the driver cannot cause slow page loads" but it only happens when the card is connected to the CPU.