sorry dude
i was out for a few days so didn't read ur message
but if u haven't bought the lcd uptil now
i'll suggest u to go for Dell ST2310 23"
I was also confused first b/w the same choice u said but then i consulted some of my known persons in Hafeez Centre and they all said don't have a viewsonic one , buy Samsung or Dell every other will some day can cause some sort of prob i didn't dig into the details because experienced suggestion is much better than user suggestion
and bought Dell st2310 its been 3 months and its working as a charm its contrast is much better and have a lot of options in it to adjust the picture as per user so i definitely advise u to go for dell if u haven't got one