Question: help with plot 3d, axis tickmarks appear blurred and rotation freezes computer

I am new to Maple (converting from Mathcad) and I am having trouble with plot3d in Maple 17.  Even in the help examples the scale numbers next to tickmarks appear blurred.   In addition after a couple of rotations of the 3D plot, my computer freezes and has to be manually reset.   I'm using Windows XP with 4 GB of physical memory.   

Would appreciate any help.  

Thanks in advance.  

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