Well, whilst working on some drawings when panning and zooming in and out it staggered and was jerky, I turned off the hardware acceleration which sometimes fixes the issue but it doesn't appear smooth with this off, it doesn't do it on all drawings just some.
I went into this with Autodesk help and they had me list the build spec and my GX Card spec, they had me install an update or 2, drawings and jobs were completed and moved forwards, not had many issues since however it still happens on occasion, id had no definite answer on what was the cause.
My boss has requested a new laptop, off the cuff suggested the Lenovo, wanted to rule out the gx card issue before spending £1700 on a new machine.
I'm pretty sure £2700 will fix this issue, however i don't think he wants to spend that, and he likes Lenovo laptops.