I was just wandering if the issue describe in this reddit post https://www.reddit.com/r/pcmasterrace/comments/3qb7ef/benq_xl2430t_problem/ was fixed on the XL2430. I know it's a rare issue but I have it on my 2430T.
No there is not fix for that. It is a rare issue that has to do with humidity and environmental conditions.
If you are under warranty we can have it exchange for you.
Please let us know.