Help - MilliSecs() error??

Blitz3D Forums/Blitz3D Programming/Help - MilliSecs() error??

If I run this, I get negative numbers being reported for Millisecs():
Graphics 640,480
SetBuffer BackBuffer()
	
ms% = MilliSecs()
DebugLog "Millisecs() = " + ms%

While Not KeyHit(1)
	Cls
	Flip
Wend
End