I was afraid that it may be my GPU or drivers.

I'm using integrated graphics on a laptop, and aside from the NTSC thing, it all works remarkably well with mame, even when using a usb DisplayLink dock to get 5 total monitors (2 on the dock and 3 off the laptop (counting the laptop screen). I wonder if the latest Ubuntu has better drivers, I'm afraid to upgrade since everything's been running so well.

00:02.0 VGA compatible controller: Intel Corporation 4th Gen Core Processor Integrated Graphics Controller (rev 06)
Model name: Intel(R) Core(TM) i7-4700MQ CPU @ 2.40GHz

After seeing the 4 mhz zipchip I thought, maybe that could speed up Instant Pascal, as I remember that being slow back in the day. (Still slow, even at 4mhz 8-) Such a pretty GUI interface though.

[Linked Image from i.imgur.com]