| UPGRADES & DOWNGRADES HISTORY |
| Date | Research Firm | Action | From | To | | 18-Sep-09 | Dougherty & Company | Downgrade | Neutral | Sell | | 5-Aug-09 | Stifel Nicolaus | Downgrade | Buy | Hold | | 18-Jun-09 | Dougherty & Company | Initiated | | Neutral | | 3-Nov-08 | Stanford Research | Downgrade | Buy | Hold | | 10-Mar-08 | Needham & Co | Upgrade | Hold | Buy | | 20-Sep-07 | Brean Murray | Downgrade | Buy | Hold | | 14-May-07 | Stanford Research | Upgrade | Hold | Buy | | 12-Mar-07 | Brean Murray | Upgrade | Hold | Buy | | 1-Mar-07 | Stifel Nicolaus | Initiated | | Buy | | 24-Jan-07 | Ryan, Beck & Co | Upgrade | Mkt Perform | Outperform |
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| Current Month | Last Month | Two Months Ago | Three Months Ago | | Strong Buy | 0 | 0 | 0 | 0 | | Buy | 2 | 1 | 1 | 1 | | Hold | 3 | 4 | 5 | 5 | | Underperform | 0 | 0 | 0 | 0 | | Sell | 1 | 1 | 0 | 0 |
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