Forums mIRC Help how to disable /part message truncation?

[16th Jul 03 - 20:30:03] * Parts: Watchdog (Blah@192.168.0.IJ3=) (1234567890[234567890[234567890[234567890[234567890[234567890[2345...)

I get 65 chars. I am assuming that due to the three fullstops at the end that mIRC is intentionally set up to reject the rest and no there's no way to disable it. Surely 65 chars is long enough though?