GA-F2A88X-D3H Mobo & A6-5400K APU (no graphic card) on Win7 x64

The machine runs OK on either VGA or HDMI output BUT.... In safe-mode I get a blank screen when going to Safe-mode when using VGA...... to remedy this in Safe-mode I have to use a HDMI monitor.

Just wondering if this is because I'm using a APU with no graphic card? There's no sweat here, thought I'd ask.