On a blank Draw document is the background white?
Yes. New doc is what background. No problem importing vector art. Blue background shows up when importing jpg. Sometimes it goes away if I change to png.
File format should not affect that. We need to look at Windows color management. What version do you run?
Windows 8. This only started last year. I wonder if it was caused by an update.
Most likely an update that loaded a bad color profile for your device.