Pocket IE has some maximum width for textboxes?

I have a page running on WinMo 6.1 Pocket IE. It seems I cannot make a textbox wider than 219 pixels, is this the case? I've tried

width="100%"
width="300px"
style="width: 100%;"
style="width: 300px;"
columns="50"

but no matter what I do, the textbox will not grow beyond 219 pixels wide, which looks kinda dorky on a 320x screen. Does pIE really limit the width of a textbox???

also button can't be 100% in size.

Try this forum http://forums.asp.net/t/1288621.aspx

there is a workaround.

i hope it helps.