I'm suggesting that the problem is either the hardware or the SUPPORT and DRIVERS that Dell and nvidia are giving it. No need to get upset about it if you're a fan of Dell - I was for a long time too (I have an XPS desktop and this XPS laptop). Maybe most of their stuff is still fabulous.
It's not two software packages not playing nice together (unless you're counting the Dell/nvidia drivers as software, but it didn't seem that way)
You're suggesting that the problem is either Max, Mudbox, or the interaction, but then that doesn't really work since there are 100s or thousands of people using those two software packages together fine with no issue. To restate my issue: with OLD drivers that Dell supplies Mudbox will not even open. With drivers new enough to support Mudbox, Max is unusable unless you switch to one and only one viewport. I don't see this as an Autodesk problem, or as Mudbox and Max not playing well together. With all the cool links and transfer capability between pieces of the suite, owning a computer where you have to pick which one works is a bummer.
More importantly, there were long, long conversations back and forth between Dell and I when I was comparing products, and they were made aware of the fact that these were the programs I was planning to use. They said all would be great...it's not, and they have offered no solutions.
I'm not suggesting that the issue is commonplace (but multiple people have it), but I am stating as absolute fact that Dell has completely dropped the ball in terms of support. Lots of people on these forums are hardware gurus - I'm not and don't wish to be, so when I buy hardware I expect it to work or to be made to work in quick order. I can't spend hours fighting the hardware. I need to buy it, then use it without trouble.
Dell no longer seems to be interested in that from my experience. Live and learn, and I have.