Timeout Issues w/DOMpdf Package

I am experiencing timeout issues that my logs are showing me is due to DOMpdf package. I upgraded the package and continue to receive issues.

Is there anyway to temporarily disable PDF generation? Any insight on troubleshooting this?

Here are the log errors from last couple of days (just after upgrading to 3.4.4):

[Thu Jul 07 16:53:41 2011] [error] [client 97.66.233.218] PHP Fatal error: Maximum execution time of 60 seconds exceeded in /home/ncshla05/public_html/2011/sites/all/modules/civicrm/packages/dompdf/include/css_color.cls.php on line 244, referer: https://www.ncshla.org/civicrm/contribute/transact?_qf_Confirm_display=true&qfKey=91e7584f24cf35a8351d021b4e7a91b7_4174

[Thu Jul 07 14:57:18 2011] [error] [client 67.237.89.145] PHP Fatal error: Maximum execution time of 30 seconds exceeded in /home/ncshla05/public_html/2011/sites/all/modules/civicrm/packages/dompdf/include/style.cls.php on line 898, referer: https://www.ncshla.org/civicrm/contribute/transact?_qf_Confirm_display=true&qfKey=89753a2508e1ea9e70e698a5e1b8abb3_2424

[Thu Jul 07 12:34:46 2011] [error] [client 97.66.233.218] PHP Fatal error: Maximum execution time of 30 seconds exceeded in /home/ncshla05/public_html/2011/sites/all/modules/civicrm/packages/dompdf/include/style.cls.php on line 784, referer: https://www.ncshla.org/civicrm/contribute/transact?_qf_Confirm_display=true&qfKey=a430df9a04a40f71274c1da4018bdcd6_9341