Max. no. of characters in a message box line is less in Vista when compared with XP

Hi,

I have noticed in Vista, the maximum no. of characters which could be
displayed in a messagebox line is 85 characters where in XP it was 131
characters.

Following is a summary when compared this with OSes,
OS - Max. no. of characters per messagebox line.
XP - 131
Vista, Windows 7 - 85
Windows2008 Server x32 and x64 - 81

Following is a code in VB to run in Vista simulate the problem which spans
into 3 lines, where it was expected in 2 lines.
MsgBox ("**Maximum number of characters per messagebox line in Windows Vista
is 85 characters.**"+CHR(13)+CHR(10)+"Expected 2nd line")

How could this display message alignment problem be fixed?
Is there a setting Vista and higher which preserves the messagebox
functionality of XP?
Please could someone advice.