Hi team!

I've been having a problem with some small print in a template of mine. In some clients, the text which should be bold is showing as normal weight. I've figured that it's down to the size of the text (10px) because when the font-size is increased by one pixel to 11px the problem is gone.

    <table cellpadding="0" cellspacing="0" width="100%" border="0">
            <td style="font-family:Arial, Helvetica, sans-serif; font-size:10px; color:#000001; font-weight:bold;">
            Some text here

Here's where the problem is occuring:
Outlook 2010
Outlook 2013
AOL, Gmail, Yahoo and Outlook.com in Chrome and Firefox (but not IE) on Windows

My assumption is that this is done to avoid tiny bold text becoming illegiable.
Any ideas about how to force a bold style on this text?