Trim switch trouble

[07DominatorSS]

Ok. I have bravo X drives. I am having trouble trimming down my drives when running, unless I trim them all the way up to the limit first. Then they will go down again. Any ideas would be appreciated. Also, I can override it using my trailer switches, but really don't like, nor want to do that.

[firehawkcat]

Fluid level to low or air in lines maybe, cheap things to check first

[07DominatorSS]

[QUOTE=firehawkcat;3200474]Fluid level to low or air in lines maybe, cheap things to check first[/QUOTE

Its not that, because the trailer trim buttons work fine. So???? Any more ideas, its driving me nuts!