Cant see envelopes ( Envelope follower, LFO etc )

[Jay15]

Anyone know why i cant see the yellow envelopes that move with the incoming audio in the max audio effects envelope follower, lfo, shaper etc...

I can see them on my laptop ( windows 10 ) but on PC ( windows 7 ) theres nothing, just a blank, black screen. Guessing it might be a graphics issue but where do i start if so? all drivers are up to date and everything else is working.

Any ideas??

[[jur]]

Did you try to minimise the e.g LFO device (double-click its title bar) and expand it again? This usually solves the issue.
Navigating between different tracks also usually works.

[Jay15]

Just tried it and still the same

there's something causing it as ive never been able to see them on my PC

[Jay15]

Anyone??