Help -> nsDiaglogs issue: some label is overlap in second page

[yudyzhao]

I use created 2 custom pages by nsDialogs.nsh. The first show the label, button and link very well. But after go to next page, the label looks like be overlapped by some other controls.
I post the code and the sreenshort here, someone please take a look and give me some idea how to solve it.
Thanks!

The first page show the Window Installer 3.1 installation:
==========================================================
nsDialogs::Create /NOUNLOAD 1018
Pop $WindowsInstallerDialogHandle

${If} error == $WindowsInstallerDialogHandle
Abort
${EndIf}

${NSD_CreateIcon} 5u 8u -40u 31u

${NSD_CreateLabel} 40u 8u -40u 31u "$(WindowsInstallerIniField2Text)"
Pop $WindowsInstallerInfoLabelHandle

${NSD_CreateLabel} 40u 28u -40u 31u "$(WindowsInstallerIniField3Text)"
Pop $SecondInstallerInfoLabelHandle

Call IsWindows3Dot1RedistibutablePresent
Pop $0
${If} 1 == $0
; show button
${NSD_CreateButton} 60u 93u 144u 14u "$(WindowsInstallerIniField5Text)"
Pop $WinInstallerFromDiskButtonHandle
${NSD_OnClick} $WinInstallerFromDiskButtonHandle InstallWindows3Dot1 ; button clicked event
${EndIf}

${NSD_CreateLink} 60u 72u -40u 10u "$(WindowsInstallerIniField4Text)"
Pop $WinInstallerLinkHandle
${NSD_OnClick} $WinInstallerLinkHandle OnWindowsInstallerLinkClicked

; Show the dialog
nsDialogs::Show
Return
============================================================

The second page show the .NET 3.5 installation:
============================================================
nsDialogs::Create /NOUNLOAD 1018
Pop $DotNetDialogHandle

${If} error == $DotNetDialogHandle
Abort
${EndIf}

${NSD_CreateIcon} 5u 9u -40u 31u

${NSD_CreateLabel} 40u 9u -40u 31u "$(DotNet3IniField2Text)"
Pop $DotNetInfoLabelHandle

${NSD_CreateLabel} 40u 30u -40u 31u "$(DotNet3IniField3Text)"
Pop $SecondDotNetInfoLabelHandle

Call IsDotNet3RedistibutablePresent
Pop $0
${If} 1 == $0
; show button
${NSD_CreateButton} 60u 91u 144u 14u "$(DotNet3IniField5Text)"
Pop $NetFromDiskButtonHandle
${NSD_OnClick} $NetFromDiskButtonHandle InstallDotNet3 ; button clicked event
${EndIf}

${NSD_CreateLink} 60u 70u -40u 10u "$(DotNet3IniField4Text)"
Pop $NetFromLinkHandle
${NSD_OnClick} $NetFromLinkHandle OnDotNetOnLinkClicked

; Show the dialog
nsDialogs::Show
Return
============================================================