I got this program and I am liking it so far, I didn't have enough RAM initially so I bumped it up to 3GB's. However I am still experiencing some problems such as:
Crashes during simulation occasionally(possibly due to Ultra Mon running???)
Output DVD's ocassionally have jumps (even with content <4.7GB).

Any ideas on why the problems?

STATS:
Burning AVI files
Verbatim DVD-R
20X Sony NEC Optiarc Drive
ATI Radeon X300/X550/X1050 Series
K-Lite Codec Pack
Running Dual monitors during authoring and encoding (UltraMon)
Burning at 4X speed

Microsfot Windows XP
Professional
Version 2002
Service Pack 3
Intel Pentium D CPU 3.00 Ghz
2.99 Ghz, 3.0 GB RAM

NOTES:
-Software website says requirements are Pentium 4 2.4 GHz (HT Technology) or better. Not sure if this is the problem (thought D was better).
-Also I didn't make any adjustments to the BIOS or anything after installing new RAM, that could be it to (should I make adjustments after new RAM?).
-I don't multitask during encoding, I start it and don't touch the computer till its done burning.

PS
What are the best settings for this program? I have heard I should:
CPU Multithread settings: Use multi thread for filtering=OFF, Use File Caching=ON, Prefetch cache settings while encoding, both video and audio=OFF.
DVD Video Settings: Video Encoder Advanced Settings-Motion Search Position=Highest with error correction, Output bit stream for editing=OFF, Detect Scene Change=ON
MPEG Settings: Encoder Multithread settings All=OFF